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US2601697A
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US
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Adjustable cleaning nozzle for suction cleaners
Assignee: Hoover Co
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Filing: 1944-03-25
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Granted: 1952-07-01
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Expires: 1964-03-25
Abstract
No abstract record available.
Inventors
- 👤 Charles G Troxler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:43
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0405; A47L9/0422; A47L9/0455
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |